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- 40-foot_telescope abstract "William Herschel's 40-foot telescope, also known as the Great Forty-Foot telescope, was a reflecting telescope constructed between 1785 and 1789 at Observatory House in Slough, England. It used a 120-centimetre (47 in) diameter primary mirror with a 12-metre-long (1,200 cm) focal length (hence its name "Forty-Foot"). It was the largest telescope in the world for 50 years. It may have been used to discover Enceladus and Mimas, the 6th and 7th moons of Saturn. It was dismantled in 1840; today the original mirror and a 10-foot (3.0 m) section of the tube remain.".
- 40-foot_telescope thumbnail 40_foot_telescope_120_cm_48_inch_reflecting_telescope_William_Herschel.png?width=300.
- 40-foot_telescope wikiPageID "20346303".
- 40-foot_telescope wikiPageRevisionID "606699333".
- 40-foot_telescope built "1785".
- 40-foot_telescope caption "Herschel's 40-foot telescope".
- 40-foot_telescope commons "40.0".
- 40-foot_telescope diameter "48".
- 40-foot_telescope firstLight "1787-02-19".
- 40-foot_telescope focalLength "40.0".
- 40-foot_telescope hasPhotoCollection 40-foot_telescope.
- 40-foot_telescope location "Slough, England".
- 40-foot_telescope mounting Altazimuth_mount.
- 40-foot_telescope name "40".
- 40-foot_telescope style "Reflecting telescope".
- 40-foot_telescope wavelength "Optical".
- 40-foot_telescope subject Category:Telescopes.
- 40-foot_telescope comment "William Herschel's 40-foot telescope, also known as the Great Forty-Foot telescope, was a reflecting telescope constructed between 1785 and 1789 at Observatory House in Slough, England. It used a 120-centimetre (47 in) diameter primary mirror with a 12-metre-long (1,200 cm) focal length (hence its name "Forty-Foot"). It was the largest telescope in the world for 50 years. It may have been used to discover Enceladus and Mimas, the 6th and 7th moons of Saturn.".
- 40-foot_telescope label "40-foot telescope".
- 40-foot_telescope label "Casa Osservatorio".
- 40-foot_telescope sameAs Casa_Osservatorio.
- 40-foot_telescope sameAs m.04zz2zx.
- 40-foot_telescope sameAs Q3661135.
- 40-foot_telescope sameAs Q3661135.
- 40-foot_telescope wasDerivedFrom 40-foot_telescope?oldid=606699333.
- 40-foot_telescope depiction 40_foot_telescope_120_cm_48_inch_reflecting_telescope_William_Herschel.png.
- 40-foot_telescope isPrimaryTopicOf 40-foot_telescope.